Screw driver with screw holder



Oct. 3, 1950 F. GRANDE SCREW DRIVER WITH SCREW HOLDER 3 Sheets-Sheet 1 Filed Feb. 18, 1947 Oct. 3, 1950 F. GRANDE SCREW DRIVER WITH SCREW HOLDER 3 Sheets-Sheet 2 Filed Feb. 18, 1947 //7 1/6/7 for Frank Grcmoe A tic/"megs Oct. 3, 1950 F. GRANDE SCREW DRIVER WITH SCREW HOLDER 3 Sheets-Sheet 3 Filed Feb. 18, 194'? [Ill III/l- INVENTOR. Fro/7k Gr'a/m c tial vertical section.

Patented Oct. 3, 1950 UNITED STATES PATENT OFFICE 2,524,167 SCREW newts WITH SCREW HOLDER Frank Grande, Farrell, Pa. Applieatio'n February is, 1947, Serial No. 729,212

6 Claims. (01. '14 50) This invention relates to a new and improved combination tool and more particularly and specifically to a combination screw driver and guiding chuck for holding and guiding both the screw and the screw driver.

The primary object of this invention resides in the provision of a combination tool comprising a chuck standard adapted to position and guide a screw in its application and also to position and guide a screw driver in its operation of inserting or applying thescrew.

Another object of this invention is the provision of a combination tool of the character described which in its preferred conception will cause the threaded insertion of a screw by the force applied by the screw driver guiding means rather than by the conventional downward pressure necessary on the screw driver by the operator thereof.

Still a further object of thisinvention i'sthe provision of a, new and improved combination tool of the character set forth herein which may be easily and quickly disposed and supported on a flat surface above the point designed to receive the screw and then quickly and easily putinto operation to apply or insert the screw as desired.

Still a further improvement and object of this invention resides in the provision of a combination tool of the character described which is simply and easily operated, and which is of a simple, durable, and extremely inexpensive design and construction. I g

Still further improvements and advantages of this invention will readily appear to those skilled in the art when the following description is read in the light'of the accompanying drawings in which: 7 I

Fig. l is a vertical section of a "side elevation of the tool. 7 A

Fig. 2 is an end view of the tool shown in par- Fig. 3 is a horizontal section taken on line 3 3 of Fig. 1.

Fig. 4 is a partial vertical section-of a modification of the invention. I

Fig. 5 is a perspective guiding tube.

Fig. 6 is a perspective view of 'the modified guiding tube. L

Fig. 7 is a vertical side section of a second modified form of the invention.

Fig. 8 is a vertical section taken on line 8 8 of Fig. 7.

- Referring now to the accompanying drawings which illustrate the preferred embodiment of View of the preferred this invention and in which like numerals indicate similar parts throughout, A designates a right angular U-s'haped frame supported freely on a pair of elongated rectangular feet I positioned therebeneath transverse the width of said frame beneath each vertical leg thereof adapted to firmly support said frame at a spaced distance above a flat surf-ace 2. The center of said frame is provided with an aperture 3 penetrating downwardly therethrough to open into an elongated slot 4 formed by a pair of spaced semi oval members 5 carried from beneath the frame A in parallel relationship transverse said frame on either side of the aperture 3. A pair of fiat elongated metallic members 6 having one curved end I thereon and an inwardly concave curved second end thereon are 'slidably mounted in end to end opposition in the channels 9 carried one in each of the members '5 in horizontal relationship. These members 6, are adapted to slide inward and outward said members 5 to engage and form a guide for, between their concave surfaces, a machine or wood screw B extending downwardly through the aperture 3 and therebetween. A resilient strap or band Ii) is positioned about in an encircling position the curved ends 1 of the members 6 being guided or seated on the outer curved surfaces of the depending members 5 forming a, resilient retainer for the sliding members normally retaining them in an inserted abutting position in the channels 9.

An inverted U-shaped frame C of substantially the same dimensions as the U-shaped frame'A is adapted to be positioned above the frame A with its Vertical legs slidably telescoping the vertical legs of the frame A thereby positioning it directly thereabove forming a rectangular frame; Each of the vertical legs H of the frame C are provided with an elongated vertical slot 12 therein each adapted to slidably receive a pair of vertically spaced threaded studs I3 carried by each of the vertical legs of the frame A, and wing nuts l4 threadedly carried on said studs external the vertical legs H of the frame C adapt the vertical adjustable positioning of the frame C above the frame A within the limits of the length of the slots l2;

A threaded aperture is provided in the upper horizontalleg of the frame C directly above the aperture 3 of the frame A and is adapted to threadedly receive an elongated nipple or guiding tube I5 therein. In the preferred conception of,

the invention as illustrated in Figs. 1 and 5 a screw driver shank l6 provided with threads thereon is adapted to be threadedly received downwardl through the guide sleeve 15 to engage the head of the screw B. The handle portion H of the screw driver is disposed above the frame C and may be provided with a transverse bar l8 therethrough to facilitate the turning of the screw driver.

Thus when a screw is positioned as in Fig. 1 within the guiding means provided therefor and a threaded screw driver H is threadedly received through its guiding sleeve to engage the head of the screw B, the screw may be easily guided into its threaded application when the frames A and C are firmly interconnected relative to one another by the means described so that rotation of the screw driver within the sleeve l5 and cause a downward movement of the screw driver through the threaded sleeve l5 which will thereby cause a downward pressure and rotation to be imparted to the screw B properly threadin .it into the desired surface therebeneath.

In the modification of this invention a substitution is made in the sleeve wherein a sleeve as illustrated in Fig. 6 having a smooth inner surface replaces the internally threaded sleeve l5 enabling an unthreaded or smooth shanked screw driver 2! as illustrated in Fig. 4 to be downwardly inserted therethrough for rotation therein thus providing a guiding means for the screw driver but necessitating th downward pressure thereon by the operator to cause insertion of the screw into its desired surface.

An additional feature of this invention resides in the provision of a semi-circular handle 22 securedtransverse the upper surface of one end of the frame C forming a handle-bar or handle for the operator to hold the toolholder securely in position while operating the screw driver with the other hand. I

Another additional feature of this invention resides in the provision of a pair of strongcoil springs 23 carried on either side or end of the tool holder resiliently:interconnecting each leg or foot with the vertical leg H of the frame C directly and above as illustrated in Figs. 1 and 2 thus allowing for compensating movement between the holding frame and the feet when a screw is being inserted whose threads are of a different size or different number per inch than the threads of the shank of the screw driver. When this difference occurs it becomes necessary for an allowance or compensating movement in the relationship of the'spaced distancebetween the sleeve l5 and the screw itself.

An additional modification of the preferred concept of this invention is illustrated in Figs. 7 and 8 and comprises a construction similar to the preferred conception as illustrated in Figs. 1 and 2 with the exception in th elimination of the cross arm interconnecting the lower termination of the legs of the member A which in the preferred concept supported the screw holding means.

In the modified form the screw holding means comprises a constructionidentical to thatin the preferredconcept except that the outer ends of the supporting arm 75 for the screw holding assembly terminate each at an equally spaceddis to and in an extended position above the top horizontal projections of the member 15 to ex- 4 tend vertically slidably through a pair of apertures H in the top horizontal beam of the upper U-shaped member C for a spaced distance thereabove. A coil spring I8 is positioned concentrically above each of said studs seating downwardly on the top of the horizontal beam C and upwardly beneath a nut held washer plate 19 carried by the top end of each stud.

The remaining construction of the invention remains the same as originally described and illustrated.

With this modified construction a vise-like pressure can be exerted on the screw after it is placed between the wedges and eliminates the necessity of holding either the screw or the tool, and after the screw is partially started into the object the screw does all the holding of the tool adjacent the supporting surface and all the operator need do is turn the screw driver.

Thus it may be seen that an improved guiding and turning means for a screw and co-acting screw driver has been provided which is of an easily operable, durable and inexpensivedesign.

Having thus described and explained this invention and with full belief that modifications in size, materials, and general characteristics of the illustrated and described concept of this invention would not depart from the spirit thereof what I desire to claim in Letters Patent is:

l. A screw driving device comprising an inverted U-shaped frame'having vertical legs and a fixed cross member extending between the upper ends of said legs, said legs comprising lower portions comprising feet to engage a surface in which the screw is to be driven and upper portions resting freely upon said feet, spring means connected between said upperportions and said feet whereby said upper portions are normally engaged with said feet, a vertical internally threaded screw driver guide on said cross memher, a vertical screw driver having a shaft vertically threaded through said guide, and a screw holder positioned beneath the lower end of said screw driver and supported on said frame, said spring means being arranged to permit said upper leg portions to rise above said feet whenever downward pressure of the screwdriver on the screw exceeds the resistance offered by said spring means.

2. A screw driving device comprising an inverted U-shaped frame having vertical legs and prising sections vertically slidably adjustable afixed cross member extending between the upper ends of said legs, said legs comprising lower portions comprising feet to engage a surface in whichthe screw is to be driven and upper portions resting freely upon said feet, spring means connected between said upper portions and said feet whereby said upper portions are normally engaged with said feet, a vertical internally threaded screw driver guide on said cross member, a vertical screw driver having a shaft vertically threaded through said guide, and a screw holder positioned beneath the lower end of said screw driver and supported on said frame, said spring means being arranged to permit said upper leg portions to rise above said feet whenever downward, pressure of the screwdriver on the screw exceeds the resistance offered by said spring means, said upper leg portions each com- 7 e en iin; e el ctedve ti a adjustment 3. A screw driving device comprising an inverted U-shaped frame having vertical legs and a fixed cross member extending between the upper ends of said legs, said legs comprising lower portions comprising feet to engage a surface in which the screw is to be driven and upper portions resting freely upon said feet, spring means connected between said upper portions and said feet whereby said upper portions are normally engaged with said feet, a vertical internally threaded screw driver guide on said cross member, a vertical screw driver having a shaft vertically threaded through said guide, and a screw holder :positioned beneath the lower end of said screw driver and supported on said frame, said spring means being arranged to permit said upper leg portions to rise above said feet whenever downward pressure of the screwdriver on the screw exceeds the resistance offered by said spring means, said screw holder comprising a horizontal member extending between and rigidly connected to lower portions of said frame legs, and a flexible screw guide on said member.

4. A screw driving device comprising an inverted U-shaped frame having vertical legs and a fixed cross member extending between the upper ends of said legs, said legs comprising lower portions comprising feet to engage a surface in which the screw is to be driven and upper portions resting freely upon said feet, spring means connected between said upper portions and said feet whereby said upper portions are normally engaged with said feet, a vertical internally threaded screw driver guide on said cross member, a vertical screw driver having a shaft vertically threaded through said guide, and a screw holder positioned beneath the lower end of said screw driver and supported on said frame, said spring means being arranged to permit said upper leg portions to rise above said feet whenever downward pressure of the screwdriver on the screw exceeds the resistance offered by said spring means, said screw holder comprising a horizontal member extending in a direction between said frame legs, a flexible screw guide on said horizontal member, vertical guide rods on said horizontal member at opposite sides of said screw guide, said guide rods slidably traversing said frame cross member, and spring means a-cting between said frame cross member and portions on said horizontal member and yieldably maintaining said screw holder in an elevated position.

5. A device as set forth in claim 1 wherein, said screw driver guide comprises a vertical sleeve removably threaded into the horizontal leg of said upper frame, and said screw driver is vertically slidabl and rotatably guided in said sleeve.

6. A combination tool of the character described comprising, an inverted right angular U-shaped frame, an identical pair of flat extensions vertically selectively adjustably secured beneath each leg of said frame, a pair of foot plates beneath said extensions and resiliently interconnected to said vertical legs of said frame spanning said extensions, an internally threaded boss vertically carried centrally by the horizontal base of said U-shaped frame, a second U-shaped frame smaller than said first frame resiliently suspended centrally therein and beneath, and a screw centering and holding means carried centrally thereby beneath said boss adapting a threaded screw driver carried by said boss to engage said screw in the manner and for the purpose described.

FRANK GRANDE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 529,701 Briggs Nov. 27, 1894 1,057,230 Fleming Mar. 25, 1913 1,441,033 Schroeder Jan. 2, 1923 1,945,741 Gray Feb. 6, 1934 2,373,992 Billinghurst Apr. 17, 1945 FOREIGN PATENTS Number Country Date 5,290 Great Britain Mar. 20, 1900 51,679 Switzerland June 10, 1910 3,48,867 France ,1 Dec. 7, 1912 

